* make sure letter-key shortcuts have ONLY the control key pressed (fixes bug for AltGr->Ctrl+Alt on windows)

imgui.cpp

@@ -6525,7 +6525,8 @@ bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputT
     ImGuiTextEditState& edit_state = g.InputTextState;
 
     const bool is_ctrl_down = io.KeyCtrl;
-    const bool is_shift_down = io.KeyShift;
+		const bool is_shift_down = io.KeyShift;
+		const bool is_alt_down = io.KeyAlt;
     const bool focus_requested = window->FocusItemRegister(g.ActiveId == id, (flags & ImGuiInputTextFlags_CallbackCompletion) == 0);    // Using completion callback disable keyboard tabbing
     const bool focus_requested_by_code = focus_requested && (window->FocusIdxAllCounter == window->FocusIdxAllRequestCurrent);
     const bool focus_requested_by_tab = focus_requested && !focus_requested_by_code;
@@ -6655,10 +6656,10 @@ bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputT
         else if (IsKeyPressedMap(ImGuiKey_Backspace))           { edit_state.OnKeyPressed(STB_TEXTEDIT_K_BACKSPACE | k_mask); }
         else if (IsKeyPressedMap(ImGuiKey_Enter))               { SetActiveId(0); enter_pressed = true; }
         else if (IsKeyPressedMap(ImGuiKey_Escape))              { SetActiveId(0); cancel_edit = true; }
-        else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_Z))   { edit_state.OnKeyPressed(STB_TEXTEDIT_K_UNDO); }
-        else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_Y))   { edit_state.OnKeyPressed(STB_TEXTEDIT_K_REDO); }
-        else if (is_ctrl_down && IsKeyPressedMap(ImGuiKey_A))   { edit_state.SelectAll(); }
-        else if (is_ctrl_down && (IsKeyPressedMap(ImGuiKey_X) || IsKeyPressedMap(ImGuiKey_C)))
+        else if (is_ctrl_down && !is_alt_down && !is_shift_down && IsKeyPressedMap(ImGuiKey_Z))   { edit_state.OnKeyPressed(STB_TEXTEDIT_K_UNDO); }
+        else if (is_ctrl_down && !is_alt_down && !is_shift_down && IsKeyPressedMap(ImGuiKey_Y))   { edit_state.OnKeyPressed(STB_TEXTEDIT_K_REDO); }
+        else if (is_ctrl_down && !is_alt_down && !is_shift_down && IsKeyPressedMap(ImGuiKey_A))   { edit_state.SelectAll(); }
+        else if (is_ctrl_down && !is_alt_down && !is_shift_down && (IsKeyPressedMap(ImGuiKey_X) || IsKeyPressedMap(ImGuiKey_C)))
         {
             // Cut, Copy
             const bool cut = IsKeyPressedMap(ImGuiKey_X);